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Try like belowExplanation:Mass of solute =10G Mass of SOLUTION =Mass of solute+Mass of SOLVENT                             =10 g+100 g                              =110 g Mass % =  Mass of solution Mass of solute×100 ​ =  110 10×100 ​ =9.09=9.1%

At 313 K 62 g of POTASSIUM nitrate dissolved in 100 g of water. So to produce a saturated solution of potassium nitrate in 50 g of water we need 10062 ×50=31 g of potassium nitrate.(b)Some soluble potassium CHLORIDE will SEPARATE out in the form of crystal at room temperature because the solubility of potassium chloride will decrease.(c)(i) Solubility of Potassium nitrate at 293 K is 32 g.(ii) Solubility of sodium chloride at 293 K is 36 g.(iii) Solubility of Potassium chloride at 293 K is 35 g.(iv) Solubility of Ammonium chloride at 293 K is 37 g. The solubility of Ammonium chloride is HIGHEST at this temperature.(d)The solubility of SALT increases with the increase in temperature.

: A SUBATOMIC particle forming part of the NUCLEUS of an ATOM. It has no charge.please mark me brain mark LIST

Some of the new features included in Windows 7 are ADVANCEMENTS in touch, speech[1] and handwriting recognition, support for virtual hard disks, support for additional file formats, IMPROVED performance on multi-core processors,[2] improved BOOT performance, and KERNEL improvements.

(a)ALT + TabExplanation:this is the ANSWER

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he first tube the reaction has taken place.ii) Since iron(II) is more electropositive than copper, it can DISPLACE copper from its salt (CuSo4).Fe + CuSo4-----------> FeSo4 +CuBut copper is less electropositive than MAGNESIUM, it can't displace magnesium from its salt (MGCL2). Thus no reaction takes place.iii) Single-Displacement reaction.

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ing order of atomic number RESULTS in more ELECTRONS which furtherly causes addition of shells in the atom RESULTING in greater atomic radii. HENCE increasing order of atomic number SHALL be C

ad(II) nitrate is heated, it DECOMPOSES into lead (II) oxide, nitrogen DIOXIDE and oxygen. The balanced chemical equation for this REACTION is 2 Pb(NO3)2 (s) produces 2 PbO (s) + 4NO2 + O2 (G). Lead (II)nitrate is also called lead nitrate or plumbous nitrate.

You are probably very well versed with the concept and term ‘alcohol’. It is not just what you see people drinking! It is a very common organic compound that finds large-scale practical applications. However, are you aware of the various METHODS for the preparation of alcohols? In this chapter, we will look at the various industrial methods of preparation of alcohols.Suggested VideosArrowArrowArrowArrowIntroduction and Preparation of Trihydric AlcoholElectrophilic Aromatic Substitution Reactions of PhenolsCoordination Complex of Ethers Preparation of AlcoholsThere are various methods and ways to prepare alcohols in industries and laboratories. Let’s learn about these one-by-one below.Preparation of alcohols1) Hydrolysis of Alkyl HalidesThis is a nucleophilic substitution reaction. The method is not a very effective one. This is because it has as olefins as by-products. ion.R-X + KOHaq → R-OH2) Oxymercuration and Demercuration of AlkanesAlkenes react with mercuric ACETATE in presence of H2O and tetrahydrofuran to give alkyl mercury compounds. This is one of the most common types of methods to prepare alcohols.3) Preparation of Alcohols from Grignard ReagentWe can obtain the three types of monohydric alcohols (primary, secondary and tertiary alcohols) by using Grignard reagents and carbonyl compounds. The addition of RMgX on carbonyl compounds, along with hydrolysis gives us alcohols. The Grignard reagent is basically an organometallic compound. Let us look at this reaction in greater detail as it is a very important reaction.When we ALLOW a solution of an alkyl halide in dry ethyl ether, (C2H5)O to stand overturnings of metallic magnesium, we witness a vigorous reaction. We can see that the solution turns cloud and begins to boil. The magnesium metal gradually disappears. The resulting solution is the Grignard reagent.CH3I + Mg \overset{Ether}{\rightarrow} CH3MgIH3CH2Br + Mg \overset{Ether}{\rightarrow} CH3CH2MgBrEthyl bromide Ethylmagnesium bromideThe Grignard reagent has the general formula R MgX, and the general name alkyl magnesium halide.More about Grignard ReagentThe Grignard reagent is highly reactive. It REACTS with NUMEROUS inorganic compounds including water, carbon dioxide, and oxygen, and with most kinds of organic compounds. It is interesting to note that an alkane is such a weak acid that Grignard reagent can displace it by compounds that we might ordinarily consider to be very weak acids themselves, or possibly not acids at all.

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hey DUDE pass the GIVEN gas through calcium hydroxide if it turns milky then it will be CO2 for NATURAL testing use the gas to exhale in a closed container and burn the candle there...

The noble gases make up a group of chemical ELEMENTS with similar properties; under standard conditions, they are all odorless, colorless, MONATOMIC gases with very low chemical REACTIVITY. The six naturally occurring noble gases are helium, NEON, argon, krypton, XENON, and the radioactive radon. Hope it helps ✌️ ✌️ ✌️ Mark me as brainliest ✌️ ✌️

his is because the hot molecules of air from the food MOVE faster and the SMELL reaches you FAR AWAY. The cold molecules of air from the food reaches you slowly. thus the smell does not REACH far.Hope it helps you!!

If the OBJECT SHINES its lustrous.Explanation:

what is the OBSERVATION for the REACTION between NITROGEN and OXYGEN

l changechemical changephysical changechemical changechemical changechemical changephysical changechemical changechemical changechemical changephysical changeboth physical n chemical changephysical changechemical changephysical changechemical changeExplanation:chemical CHANGE-after burning NEW substancs are formed physical change- no new substancs are formedHOPE IT HELPS YOU

tion:Matter is EVERYTHING around you. Atoms and compounds are all made of very small parts of matter. Those atoms go on to build the things you see and TOUCH every day. Matter is defined as anything that has mass and TAKES up SPACE (it has volume).

he will decide that whom to give which cold drink by TESTING with LITMUS PAPER the drinks.Explanation:Hope you like it

hyExplanation:Matter is everything AROUND you which is made up of particles. It has MASS and occupies space. Mass is a physical quantity which expresses the amount of stuff in an object. The space inside the container that is OCCUPIED by matter is its volumemark it as brilliant LIST ✌

Mark me brainliestExplanation:The Mahabharata and Ramayana are the most popular of the epics and other religious books of the Hindus. They are also famous among the followers of other RELIGION. The causes for their popularity are almost the same. The story of the Mahabharata tells family drama followed by a great was between the two groups of the same family, the Kauravas and Pandavas. In the Mahabharata we know how much tolerance one should have, how one can FIGHT for a justified cause, how we should respect our elders, ETC. There are so many teachings of ideal life in it. The Gita, which constitute a part of the Mahabharata is in itself considered as a great epic. It unfolds all the mysteries of life, the life before and the life after.In the same way the Ramayana teaches us the high ideals of life. Rama, the most prominent character, shows how many should FOLLOW the ideals of life. He possesses all the virtues of a highly idealistic and realistic human being. He follows the system in a humble way. He fights for the justice and his right. This story is told in a very realistic way. It seems to be the story of a common man. So, it has a great appeal in our society till today.Moreover, these epics are famous even today as they contain characters like Vishnu and Shiva. These two are the GODS around whom the Bhakti cult developed in the medieval period. The Ramayana is celebrated each year with the festivals like Diwali and Dussehra.November 22, 2019

nswer : During CHEMICAL reaction, atoms are not created not destroyed, they are just REARRANGED from the REACTANTS to form the products. This is the reason for constant mass in a chemical reaction. Note the below points or cases:- In a closed system [Nothing EXTRA (other than the reactants) can get into and Nothing can escape] , if a chemical reaction occurs, then mass will REMAIN constant.- But if a chemical reaction is completed in an Open system, Mass changes may occur. Usually, these Mass changes only occur when gas is being released into the atmosphere or a gas from the atmosphere is being used as reactants. These change in mass allows scientists to monitor the rate of reaction.

o because particles of HOT food get diffused easily because it has high kinetic ENERGY but cold Food didn't had high kinetic energy so we need to GO CLOSE

tion:Glass is not a liquid in the strictest sense of the word. But it is also not a standard solid. The CHEMISTRY of glass is complex and research is ongoing, but the current consensus is that glass is a PHASE of matter all its own, known as an "AMORPHOUS solid". Scientists refer to any amorphous solid as a "glass". Glass transitions are highly complex and cannot be treated in the same way as traditional phase transitions, according to the TEXTBOOK "Glasses and the Glass Transition" by Ivan S. Gutzow.

here is ur answer.... We get perspiration or sweating because our BODY tries to COOL ourselves by releasing water (sweat) through the pores of our skin. And now when we SIT under a FAN ,the sweat on our body evaporates due to the air directed upon us, making our body cool. That's why we feel good.Hope it helps you... Pls mark. It as BRAINLIEST

there are 4 atoms present in ONE molecule of phosphorusThere are two types of phosphorus present They are WHITE phosphorus and RED phosphorus.Hope it helps U

tion:NUCLEAR transmutationhope it HELPS!!PLZ MARK me as BRAINLIEST!!

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The atomicity of water that is H2O is 3 because Hydrogen and Oxygen COMBINE in the ratio of 2 :1 so, 2+1=3HOPE IT HELPS YOU PLS MARK ME AS THE BRAINLIEST......MIND YOU IT WILL GIVE YOU MARKS TOO